Images

Map view. Colored shaded-relief bathymetry map of Monterey Canyon and Vicinity map area, generated from multibeam-echosounder and bathymetric-sidescan data. Colors show depth: reds and oranges indicate shallower areas; purples, deeper areas. Illumination azimuth is 300°, from 45° above horizon.

Browse graphic of point cloud data from low altitude aerial imagery from unmanned aerial system flights over Coast Guard Beach, Eastham, MA

Neil Ganju (standing) and Patrick Dickhudt preparing an oceanographic platform to measure wetland sediment transport in Forsythe NWR, New Jersey

Photomicrograph of sample 09RDWES301 - an andesite collected during the Redoubt 2009 eruption. A rock thin section is created by gluing a small piece of rock onto a glass slide, then grinding it down to a thickness of 30 microns (the average human hair is about 100 microns in diameter) so that light shines through it when examined under the microscope.

Photographs showing equipment used during bathymetric and topographic surveys along the Columbia River littoral cell, Washington and Oregon.

On May 24, 2016, two new flows broke out on the flanks of the Pu‘u ‘Ō‘ō cone on Kīlauea Volcano's East Rift Zone. The silvery sheen of new lava erupting from the northern 61f breakout (center) and eastern 61g breakout (upper left) stands out in contrast to the older flows on and around Pu‘u ‘Ō‘ō (right).

This building housed the Kīlauea cyclorama at the Chicago World's Fair in1893. Positioned above the entrance to the cyclorama was a statue of Pele, the Hawaiian volcano goddess, standing on a lava flow and holding a flame. For more info, please see https://chicagology.com/columbiaexpo/fair052/.

USGS ocean engineer Gerry Hatcher with the camera system he helped create for recording the precise time and geographic location of each air photo it takes. The system is mounted in the cargo compartment of a Cessna 182R airplane and takes photos through a window cut into a removable cargo door (right).

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of November 29 is shown in pink, while widening and advancement of the active flow as of December 14, based on satellite imagery, is shown in red. Older Pu‘u ‘Ō‘ō lava flows (1983-2016) are shown in gray.

December 13 - 14, 2016 Long Valley Caldera earthquake swarm recorded on instrument MDH1 webicorder. Swarm begins at 23:28 PST.

In July 2016, lava erupted from Kīlauea Volcano's East Rift Zone reached the ocean for the first time in almost three years, building the Kamokuna lava delta, shown here in October 2016.

This video, at 50x speed to illustrate the motion of the lava lake surface, shows typical lava lake activity within Halema‘uma‘u Crater. Lava upwells in the northern portion of the lake (left side of image), with most of the lake surface flowing towards the south (right side). Spattering is active within a small grotto at the southeast margin of the lake.

As you watch this VIDEO CLIP, note the rocky ledge (yellow arrow) at the bottom of the webcam image. At 6:58 a.m., HST, today, this large slab of the summit vent wall, located directly below HVO's HMcam, collapsed.

USGS Hawaiian Volcano Observatory geologist Frank Trusdell (right) discusses methodologies for lava flow hazard assessment in Hawaii with a volcanology colleague from Ethiopia during the recent Volcano Observatory Best Practices Workshop in Vancouver, Washington.

The U.S. Geological Survey Hawaiian Volcano Observatory and the National Park Service Jaggar Museum are perched together near the summit of Kīlauea, about 1.7 km (~1.1 mi) from the lava lake in Halema‘uma‘u, producing a plume in the background.

A wide view of the ocean entry, showing the broad lava delta on the right. Lava deltas (new land formed at the ocean entry) are built on a foundation of rubble, so they can (and do) collapse without warning.

USGS research oceanographers Jenna Brown and Joe Long installed this video camera atop the Shoreline Island Resort hotel in Madeira Beach, Florida. Starting in February 2017, the camera has recorded video for 17 minutes every hour during daylight hours.

Another view of Halema‘uma‘u with its lava lake. The view is to the southeast.

Tectonic Features of World with Subduction Zones Highlighted. (modified from This Dynamic Planet)

Lava continues to enter the ocean at Kamokuna, where a lava delta about 19 acres in size has been built. The gravel emergency access road is visible on both sides of the surface flow that cut it. The view is to the southwest.

A breakout from the episode 61g vent at the head of the lava tube on November 21 sent lava streaming downslope. That breakout was still active when observed on November 29 and had traveled about 1.3 km (0.8 miles), partly surrounding Pu‘u Halulu, a tephra cone formed in 1983 at the start of the Pu‘u ‘Ō‘ō eruption.